Add "brew rdeps" command

Signed-off-by: Alexander Barton <alex@barton.de>

diff --git a/cmd/brew-rdeps b/cmd/brew-rdeps
new file mode 100755 (executable)
index 0000000..342651b
--- /dev/null
+++ b/cmd/brew-rdeps
@@ -0,0 +1,8 @@
+#!/bin/sh
+# 2016-01-17, alex@barton.de
+
+for formula in "$@"; do
+       brew deps --installed \
+        | grep "\b$formula\b" \
+        | cut -d':' -f1
+done | sort -u